An excellent interview:
Voodoo Extreme Interview And Screenies.
By [RO]Wilsonam
Published: July 26, 2006
This has a bunch of exclusive screenshots taken of the material you'll see in the Booster Pack, plus a couple of pages interviewing Tripwire staff on a number of topics ranging from the Free Demo through to our plans for the future.
Interview: http://ve3d.ign.com/articles/721/721049p1.html
RO HomePage: http://www.redorchestragame.com/